Chain hook



E. IBACH May 26,1925. 1,539,117

CHAIN HOOK Original Filed Nov. 21, 1923 910 L9 fi J8 7' M 19 l m wINVENTOR ATTORNEYS sey, have invented certain new and useful PatentedMay 26, 1925.

UNITE stares re ain A'IENT, series.

EMIL IBAGH, or HOBOKEN, NEW JERSEY, Assienon TO BETHLEHEM STEEL (JOE/LPANY, 0E BETHLEHEM, PENNSYLVANIA, acoaroearron or PENNSYLVANIA.

CHAIN HOOK.

Applicationfiled November 21, 1923, Serial No. 676,195. Renewed December8, 1924.

To all whom it may concern:

Be it known that I, EMIL lnkoii, a'citiZen of the United States, andresiding at Hobokcn, county of Hudson, State of New Jerlinprovements inChain Hooks, the following is a specification. My invention relates toof which ham hooks ot the type adapted for attachment to' motor vehiclerims for the purpose of securing in place ends of antiskid chains and ithas for an object to provide a hook of this character which shall bestrong and durable. 4

A further object of my invention is to provide hook ends arranged closeto the web and spoke construction of a wheel, whereby such web and spokeconstruction assists in keeping chains on the hooks.

.Ghain hooks are commonly provided on the inner peripheries, of metallicwheels for the attachment of antiskid chains. Such hooks as ordinarilyconstructed comprise base portions adapted to be riveted to the innerfaces of wheel rims and hook portions extending from the base portionsbut they have proved to be not entirely satisfactory owing tothe lack ofstrength and the tendency of chains to work up on the hook portionsthereby submitting the latter to excessive strains. I have provided anew type of chain hook in which the hook portion springs from the basemember throughout the width of the latter so as to provide a hook memberhaving a relativelydeep section adjacent to the base member to resistbending stresses, the hook member being defined by an inclined taperingmember thetop edge of which extends from one edge of the base member,over the latter, and terminates to one slde ofthe other edge of the basemember while the bottom side of the hook member extends from the otheredge oi the base member. The oblong section of the hook or retainingmember near the base member serves to prevent a chain link from turning,twisting, and crawling with respect to the hook member and the slidinginner surface of the hook member serves to cause a link to tend to movetoward the base member when a chain is pulled. These two featurescooperate to keep the links about the hooks close to the base members,whereby the chains are not likely to move out toward the retainingmemher or hook ends and result iu li ending or breaking of the latter.The base member is prcferablycurved so that the center line of theattaching rivets may be brought quite close to the front; side of thehook portion, whereby chain pulls are transmitted very largely asshearingstresses in the rivets, thereby'making a very strongconstruction as rivets are capable of standing much great er loadsinshear than in tension.

Apparatus made in accordance with my invention, is illustrated in theaccompany ing drawings, forming a part of this application, in which:

Figure 1 is. a detail fragmentary sectional view of a wheel showing myimproved chain hooks applied thereto 1 i Figure 2 is a plan view of myimproved chain hook;

Figure 3 is'a view in side elevation of the hook; and g I Figure 4: is asectional view taken along the line IVIV of Figure 3.

Referring now to the drawings I show,

in Figure 1, a portion of a motor vehicle wheel having a web -9 and arim 10 with chain hooks 11 of my improved type attached to the innerface of the rim, ends of a chain 12 being shown'in engagement with thehooks 11.

Referring to Figures 2, 3 and 1, my improved chain hook 11 comprises abase por tion 13 having rivet openings 14 and a hook or retainingportion 15 which springs from the top of the base portion 13substantially throughout the width of the latter and which terminates inan outer portion 16 curved toward the plane of the base portion 13. Across bar 16 is arranged at the outer end of the curved portion toassist in retaining a chain'link.

Referring to Figures, it will be'seen that the retaining or hook member15 consists of an inner'shank portion 17 inclined at an acute angle withrespect to the base mem-loer and that such a shank portion springs fromthe base member substantially throughout the full width of the latter.vThe shank portion 17 istapered outwardly and it merges into the curvedportion 16 which terminates in a cross bar 16 as already dew scribed.From the structure described, it will be apparent that the top side18-of a hook or retaining member 15 extends from one edge 19, of thebase member 13, across the base member, laterally to one side Off theother edge 20 of the base member 13, and then curvesinnnirdly toward theplane of the base member while the bottomside or inside 21 of the hookor retaining member extends from the edge of the base member at an acuteangle and then, like the top side, it is curved inwardlyitoward theplane of the base member.

Referring to Figure '2, it will be seen that the base member 13 iscurved in two directions. Itis 'c-urved in'one direction to fit theinner periphery of a wheel rim and it is curved in the other directiontoprovide a strong anchorage for a chain end. By having the edge 20adjacent to the hook or retaining member 15 concave, the line of centersof the rivet openings are brought quite close 'tothe inside of -the hookor retaining member contiguous 'to the edge 20, whereby the pull of achain on the retaining or hook member is transmitted very largelyasshearing stresses'in'the rivets 14. Upon reference to Figure 1, itwill be seen that opposed hooks-and their hook or retaining portions '16extend toward each other with the cross bars 16 sufficiently close'to'the web and spokeconstructions 9 that the latter cooperates to keepthe chain linkson the 'hook or retaining *IDBIIllOGTS. A chain link maybe put on by arranging it substantially parallel with respect to acrossbar16 and theirpassing'it edgewise until one side of'the link is belowthe cross bar, whereupon the link may be turned and passed over thecrossbar 16 Thereafter the link 'is turned substantially 90 and slippeddown the shank portion 17 with the link sides-substantially parallel tothe sides of the shankportion.

"From the foregoing, it will be apparent that T have devised a A chainhook construction-which isstrong and durable, these charactristicsdieing-dependent uponthe design of hook whereby thechain normallytends to move toward the base portion thereof and whereby ater'liliH-Zil chain link=is positively prevented from twisting" or 1turning with -re- 'spect to' a hook 'member. Furthermore, by having theI retaining jor hook portions spaced from the spoke and web constructionby disstances only slightly inexcess of thewliam- 'cter ofthe-linkstock, it isn-eeessary'to bring a 'link into parallelism with -across bar and moveit ina particular wayin orderto:place a-lin'kon a hookor:remove it from the latter, whereby, in operation, the likelihood of achain working loose is greatly reduced. Also curvature ofthe'base'portionso :as to bring the attaching rivets nearto the front-edgeof the hook 'or retaining portion serves to provide a "very strongconstruction in that loads are' transmittedvery largely asshearin gstresses in the rivets.

lVhile l have shown my invention inbut one form, it will 3 be obvious tothose skilled in the art that it'is not so limited, but is susceptibleOf'VHllOUS other changes and'modisuch limitations shall be pl-acedthereupon as are lmposed by the prior art or as are Specifically setforth in the appended claims.

Having thus described the invention, what :1 claim as newrandadesireto-secure by Letters Patent is 1. A hook for retaining one end of ananti-skid chain of :the cross chain type'and adapted for attachment tothe 'felloe 0f a motor vehiolewheel comprising a base member anda hookmember iintegral with and springingfromzthe basemember for approximatelythe full width -'of the latter, said hook member facing away from thebase member 'for bearingthe load imposed by a chain.

2. A device for retaining one end of an antieskid cross-tire=chain of amotor'vehicle wheel in place .comprising-ahook consisting of a,laterally curved base member having rivet-:openingsnear theendsithereof, wherebyithe hookanay be secured ;in place with respecttothe felloe of a motorrvehiclewheel, a hook member integralwithandspringing fronrthe outersurface of the base member for approximately thefull. width of the latter and projecting beyond :the concaveside-thereof, said hcok member being adapted to receive a linkof -ananti-skid chain andhaving'a' surface which faces. away from the basemember for bearing the load imposed by a chain, and means cooperatingwith the hook member fol-obstructing disengagement 1 of a' chain link itherefrom.

. A. :hook ifor retaining one .end of. an antiskid chainofthe'crosschain type and adapted for attachment to the felloe of'a motor vehiclewheel comprising a-basememher and a hook member integral avith andspringingfrom-the base member for snbstantiallv the full width .of thelatter and extending.laterallyand outwardly from the outer surf-ace [ofthefbase member to provide a chain load-bearing surfa cc which facesaway from-the basem'ember and which is inclined toward the latter,.whereby, in service. a

chain link-engaging about the hook member is urgedttoavardthebasemember-to secure an. effective support forithe chain. 4. A device forretaining one end of an antr-skidcross tire chanrof a motor vehicle 1late ally and outsurface of-the base member and projecting" eyond theconcave side of the latter to provide a chain loadbearing surface whichfaces away from the base member and which is inclined toward the latter,whereby, in service, a chain link surrounding the hook member is, due tothe pull of the chain, urged toward the base member to secure aneffective support for one end of the chain close to the center linejoining the rivet openings, and means coopcrating with the hook memberfor obstruct- 1. ing disengagement of a chain link therefrom.

In testimony whereof I hereunto afiix my signature this 19th day ofNovember, 1923.

EMIL IBAOH.

